Energetically-dominant Sunward-Propagating Alfvén Waves Near 1 au and Their Relation to Large-scale Magnetic Switchbacks

Nickolas Giardetti, Sofiane Bourouaine, Jean C. Perez

In this letter, we investigate the population of energetically-dominant sunward-propagating Alfvén waves (SAWs) using more than 20 years of data provided by the Wind spacecraft ne…